Event Calendar This event has passed. Apollo 50th July 16, 2019 at 10:00 am - 5:00 pm Free The museum will host five days of Apollo fun. On the actual night of the moon-landing anniversary, July 20, the museum will count down to the exact moment, at 10:56 pm, when Armstrong made that famous first step. Free. Details Date: July 16, 2019 Time: 10:00 am - 5:00 pm Cost: Free Event Category: Editors' Pick Visit Website Venue Smithsonian National Air and Space Museum 600 Independence Ave SW Washington, DC 20560 United States + Google Map To advertise your event on this calendar, contact calendar@washingtonian.com.+ Google Calendar+ Add to iCalendar